(E)-octadec-9-enoic anhydride CAS 55726-25-5
| CAS No. | 55726-25-5 |
| Molecular Formula | C36H66O3 |
| Molecular Weight | 546.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies (E)-octadec-9-enoic anhydride (CAS 55726-25-5), a certified reference material (molecular formula C36H66O3, MW 546.91 g/mol) for analytical method development and quality control.
(E)-octadec-9-enoic anhydride (C36H66O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C36H66O3 |
| Molecular Weight | 546.91 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
Related E Standards
- (Z)-Octadec-9-en-1-yl (R,Z)-12-hydroxyoctadec-9-enoate (CAS 36781-75-6)
- 2-(Octadec-9-en-1-yloxy)ethyl (2-(trimethylammonio)ethyl) phosphate (CAS 96720-06-8)
- (Z)-1-(Octadec-9-en-1-yl)-5-oxopyrrolidine-3-carboxylic acid (CAS 94108-41-5)
- 1-(Octadec-9-en-1-yl)-5-oxopyrrolidine-3-carboxylic acid (CAS 47555-10-2)
- (Z)-5-(Octadec-9-en-1-yl)pyrimidine-2,4,6-triamine (CAS 94087-82-8)
- (Z)-1-(Octadec-9-en-1-yl)imidazolidine-2,4-dione (CAS 85117-84-6)
- 3-(Octadec-2-en-1-yl)dihydrofuran-2,5-dione (CAS 67066-88-0)
- (Z)-Octadec-9-en-1-yl hydrogen sulfate (CAS 7747-53-7)
Recommended Standards
- Methyl (3E)-2-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-indol-3-yl}-3-{[(4-nitrophenyl)methoxy]imino}propanoate (CAS 303152-89-8)
- Oleic Anhydride (CAS 24909-72-6)
- 1,3,5-Trimethyl-1,1,3,5,5-pentaphenyltrisiloxane (CAS 3390-61-2)
- Telotristat (CAS 1033805-28-5)
- 1-Cyclopropyl-1-(4-pyridyl)methylamine (CAS 1270506-12-1)
- Ethyl 2-aminocyclopentane-1-carboxylate hydrochloride (CAS 119993-56-5)
- 2-[4-(Benzyloxy)phenyl]furan (CAS 893735-93-8)
- Benzyl (2S,4R)-2-(6-fluoro-1H-indole-3-carbonyl)-4-hydroxypyrrolidine-1-carboxylate (CAS 1174655-35-6)
- 4-(4-(2-Chloro-5-nitrophenyl)buta-1,3-dien-1-yl)benzene-1-sulfonyl fluoride (CAS 31368-34-0)
- 5-chloro-2,2-dimethylcyclopentan-1-one (CAS 1538785-55-5)
- (S)-3-amino-2-(benzylamino)propan-1-ol (CAS 1260587-77-6)
- N-(2-Cyclopropoxy-4-(methylthio)phenyl)methanesulfonamide (CAS 1243350-17-5)
- 5-((6-((1,3-Dihydroxypropan-2-yl)amino)pyrimidin-4-yl)amino)pyrazine-2-carbonitrile (CAS 1137475-53-6)
- D-Pro37-Tirzepatide (CAS CATO-CPTD788902)
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